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Question
What is the function of the following in a dynamo?
Concave cylindrical magnets
Short Answer
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Solution
They produce a strong, uniform radial magnetic field in which the armature coil rotates. This ensures that the coil cuts the magnetic lines of force effectively, giving a larger induced e.m.f.
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Chapter 9: 1. Electromagnetism 2. Magnetic Effects of Electric Current 3. Electromagnetic Induction - EXERCISE-2 [Page 222]
